Home / 336,621.80-505,037.46-99,965.72

Finding the Fourth Proportional to 336,621.80, 505,037.46 and 99,965.72

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Solution

The fourth proportional to 336,621.80, 505,037.46 and 99,965.72 is: 149,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,621.80 : 505,037.46 = 99,965.72 : x
  2. Step 2: Convert to fraction form
    336,621.80/505,037.46 = 99,965.72/x
  3. Step 3: Cross multiply
    336,621.80x = 505,037.46 × 99,965.72
  4. Step 4: Simplify right side
    336,621.80x = 50,486,433,315.87
  5. Step 5: Solve for x
    x = 50,486,433,315.87/336,621.80
  6. Step 6: Final answer
    x = 149,979.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.